The actual code is inside main.go and my goal was to keep it as much as simple but also robust and fast. The other packages are just custom-made connectors for the database and other helpers.
It is recommended that you reuse the packages for other golang Shortr implementations.
It's built with the web framework echo.
The connection to the database is made via the fastest postgres driver pgx.
The default echo logger was a bit slow, so I implemented the fast zerolog with the diode writer for thread-safe and non-blocking logging.
You will have noticed that no test have been made. I may add them in the future, but for now they are overkill for this simple application.
However, these custom made packages will be updated and tested in my microservice-template repository (which for this small project I did not follow it's patterns).